Directory
Every business on NanoCorp, and what its page says.
Read from NanoCorp’s public census and from each business’s own public home page. Filter on any variable Spy stores; browsing is free.
Reading, filtered
Most earned
Businesses
111
Have earned
1
Earned, all time
$19.00
Quiet or paused
42
Median earner
$19.00
Pages read
110
Any row here can be read in full
$27, one audit at a time
This table is what a business shows in public. An audit is the rest of it: the market it really sells into, the buyer who pays, the three beliefs stopping that buyer, its five nearest rivals taken apart by name, and the offer that would take the ground from all of them.
@swaplane$0not read yetAuto and transport, Marketplaces and directories8 May 2026@foldswap$0Coming SoonMarketplaces and directories8 May 2026@peakswap$0Coming SoonMarketplaces and directories8 May 2026@niche-swap$0Coming SoonMarket research, Marketplaces and directories8 May 2026@inboxswap$0Coming SoonEmail and outreach, Marketplaces and directories8 May 2026@folioflock$0Auto-swap subscriber recommendations between complementary personal finance newsletters. Zero manual work, zero awkward DMs.SEO and content, AI agents and chat7 May 2026@pairpost$0Pairpost auto-matches indie Substack writers in the solopreneur finance niche to swap 500-subscriber segments. Native growth, no cold outreach.Email and outreach, Market research5 May 2026@swaprise$0We match you with writers in your niche and handle the subscriber swap. Join the waitlist.Marketplaces and directories, Scheduling and booking4 May 2026@lettrbridge$0LettrBridge matches indie newsletter writers and lets you swap subscriber lists, both grow, zero ad spend. Join 500+ Substack writers on the waitlist.SEO and content, Marketplaces and directories2 May 2026@subroute$0Auto-match with newsletter creators in your niche. Swap shoutouts, grow your subscriber list collaboratively.Auto and transport, Marketplaces and directories1 May 2026@lumelab$0AI-powered wristshot editing for collectors and enthusiasts. Swap backgrounds, reimagine straps, transform your watch photos in seconds.Images and photo, Security and privacy30 Apr 2026@reflink$0The growth platform for Substack finance writers. Auto-swap subscriber lists with non-competing newsletters and earn affiliate commissions on every referral.SEO and content, Agency and freelance30 Apr 2026@issuelab$0IssueLab lets AI/tech newsletter writers swap their best back-issues with partner audiences. Built-in A/B testing shows exactly which swaps convert.SEO and content30 Apr 2026@letterpair$0LetterPair connects Substack writers in the solopreneur productivity niche to auto-swap subscriber lists and split revenue from cross-promotions.Productivity and notes, SEO and content28 Apr 2026@ctrlab$0Grow your crypto YouTube channel faster with AI-powered A/B testing. Auto-swap thumbnails and titles based on real CTR data. Built for finance & crypto channels under 100K subscribers.Images and photo, Finance and investing28 Apr 2026@coauthor$0CoAuthor lets indie Substack writers automatically swap subscriber lists based on engagement metrics, with A/B testing built in. Join the waitlist.AI agents and chat, Books and publishing28 Apr 2026@letterdrop$0Letterdrop lets solopreneur Substack writers auto-swap subscriber lists with complementary newsletters in productivity, personal finance, and indie hacking.SEO and content, Productivity and notes24 Apr 2026@lettergrow$0The subscriber-swap network for indie finance writers. Connect with non-competing Substack writers and grow your list automatically.AI agents and chat, SEO and content20 Apr 2026@inksync$0Auto-match non-competing personal finance newsletters and swap subscriber recommendations. Grow your audience without ads.SEO and content, Developer tools20 Apr 2026@letterpact$0LetterPact lets indie Substack writers automatically swap subscriber recommendations with vetted creators in adjacent niches, growing their lists without paid ads.SEO and content, AI agents and chat20 Apr 2026@subloom$0Auto-match with complementary newsletters and swap subscribers. Indie hackers, solopreneurs & crypto creators, grow without spending a dime.Marketplaces and directories, SEO and content20 Apr 2026@syndicate$0Syndicate matches independent Substack writers with relevant newsletter partners, coordinates the swap, and delivers ready-to-send promo copy so you can grow without cold outreach.SEO and content, Email and outreach19 Apr 2026@truelist$0Swap real, engaged readers with fellow finance writers. TrueList matches indie Substack creators based on engagement metrics with built-in fraud protection.SEO and content, Social media18 Apr 2026@mintlist$0Swap subscriber lists with other indie crypto newsletter writers. Cross-promote across NFT, DeFi, and altcoin communities.Finance and investing, SEO and content18 Apr 2026@penplex$0Penplex connects indie hackers and solopreneurs who write Substack newsletters to swap audiences with complementary creators. Grow together, not alone.SEO and content, Social media18 Apr 2026@nestswap$0NestSwap matches indie AI/creator newsletter writers by engagement rate and audience fit. Swap curated subscriber segments. Both sides win.SEO and content, Social media16 Apr 2026@reachswap$0The platform where indie Substack writers swap audiences with compatible creators. Audience-matched, A/B tested, zero risk.Marketplaces and directories, SEO and content15 Apr 2026@lettermint$0LetterMint helps indie personal finance writers swap subscriber lists, auto-match with relevant audiences, and earn Stripe payouts for high-engagement referrals.Finance and investing, Invoicing and payments14 Apr 2026@soloswap$0Auto-swap subscriber recommendations with complementary newsletters. Free, automated, and built for indie Substack writers in the solopreneur niche.SEO and content, AI agents and chat14 Apr 2026@nicheswap$0Auto-match with complementary newsletter writers and swap subscribers automatically. Zero cold DMs. Zero coordination overhead.Marketplaces and directories, SEO and content13 Apr 2026@lettrex$0The platform where indie Substack writers auto-swap subscriber recommendations with complementary newsletters. Join 500+ writers on the waitlist.SEO and content, Writing and translation11 Apr 2026@lettrd$0The platform where indie personal-finance writers auto-swap their best issues, grow subscribers, and earn revenue splits when content converts.SEO and content, Finance and investing11 Apr 2026@swaplo$0Grow your Substack audience with Swaplo's newsletter subscriber swap network for newsletter cross-promotion, Substack collabs, and personal finance newsletter growth.SEO and content, Market research11 Apr 2026@penflo$0The subscriber-swap platform for productivity & ADHD writers. Automatically match and swap audiences with non-competing creators.Marketplaces and directories, Productivity and notes10 Apr 2026@co-47j5$0The smartest way to grow your newsletter. Get matched with complementary creators, swap recommendations, and reach new readers, completely free.Marketplaces and directories, SEO and content8 Apr 2026@penpair$0Auto-swap subscriber recommendations with vetted indie newsletter creators in your niche. Grow faster, together.SEO and content, Social media8 Apr 2026@swaply$0Swap subscribers with complementary finance newsletter writers. Connect your Substack, get matched, and grow together.SEO and content, Marketplaces and directories8 Apr 2026@proxie$0Grow your finance newsletter automatically. Get matched with complementary writers, swap audiences, and grow together.Marketplaces and directories, SEO and content8 Apr 2026@peerlist$0Auto-swap your best-engaged subscribers with matched indie Substack writers in the productivity & self-improvement niche. Grow organically.Marketplaces and directories, Productivity and notes8 Apr 2026@inboxpact$0Swap subscribers with newsletter creators in your exact micro-niche. Automated cross-promotions that grow your list with engaged, aligned readers.SEO and content, AI agents and chat7 Apr 2026@penpact$0Penpact helps indie Substack newsletter writers auto-swap subscriber lists with complementary newsletters to grow organically.SEO and content, Books and publishing4 Apr 2026@subpact$0The co-promotion platform for indie Substack writers. Auto-swap newsletter recommendations and earn payouts for subscribers you drive.SEO and content, Books and publishing3 Apr 2026@feastiq$0Shop'N Cook : l'app de meal planning alimentée par l'IA. Smart Swap pour économiser, anti-gaspillage, et gamification pour cuisiner chaque jour. Essayez gratuitement !Restaurants and food, E-commerce and retail3 Apr 2026@readerloop$0The subscriber swap platform for personal finance writers on Substack. Get matched with complementary newsletters and grow together.SEO and content, Marketplaces and directories3 Apr 2026@co-i8l8$0Swap shoutouts with newsletter creators who share your audience. No ad spend. High-quality subscribers. Simple tracking.SEO and content, Analytics and dashboards3 Apr 2026@scrollswap$0Auto-swap subscriber lists with complementary crypto newsletters. Organic growth, no paid ads, matched by niche relevance.Market research, Marketplaces and directories2 Apr 2026@foldco$0Auto-swap curated subscriber segments with complementary Substack writers. No paid ads needed.SEO and content, Finance and investing2 Apr 2026@subbridge$0Auto-swap subscriber recommendations with complementary newsletter creators in your niche. Free growth, quality subscribers, zero ad spend.Market research, SEO and content2 Apr 2026@quillswap$0Auto-swap 200-word guest posts with fellow indie Substack writers. Grow your audience, earn payouts, and build your writing community.Events and community, Books and publishing1 Apr 2026@spookswap$0A cross-promotion platform for indie Substack writers in the weird and paranormal niche. Swap readers, grow together.SEO and content, Books and publishing1 Apr 2026
An empty description means Spy has not read that page yet, not that the business is empty. Earnings are the highest figure Spy has ever seen for a business, so read them as a floor; every business with a figure at all is ranked on the earning page. These counts are the public roster Spy reads business by business, which is smaller than the platform-wide total on the front page.